When Evaluating Service Quality,customers Look for Assurance,which Means

When evaluating service quality,customers look for assurance,which means

A) providing caring,individualized attention.
B) maintaining knowledgeable and courteous employees who will earn the confidence of customers.
C) helping customers promptly.
D) performing the service as promised,both accurately and on time.
E) maintaining a pleasing appearance among personnel,and in materials and facilities.